public interface IDeletableEntityRepositoryThe above code is an example of the IDeletableEntityRepository interface. It has two methods: - The DeleteAll method takes a predicate as input and deletes all entities that meet that predicate. - The DeleteById method takes an ID as input and deletes the entity with that ID. This interface belongs to the Entity Framework Core package library.where T : class { void DeleteAll(Expression > predicate); void DeleteById(int id); }